Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
57.1710 65.8889 0.0103 15.8922 12.6464 0.7043404 18.552 TRIG_00664078
Foreground time interval of the image:
0.016 11.061 (delta_t = 11.045 [sec])
Background time interval of the image:
-239.440 0.016 (delta_t = 239.456 [sec])
Lightcurves
Notes:
- 1) The mask-weighted light curves are using the flight position.
- 2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
- 4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
- 5) Time of each bin is in the middle of the bin.
1 s binning
From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval
64 ms binning
Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec
16 ms binning
From T100_start-5 s to T100_start+5 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
8 ms binning
From T100_start-3 s to T100_start+3 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
2 ms binning
From T100_start-1 s to T100_start+1 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Quad-rate summed light curves (from T0-300s to T0+1000s)
Spectral Evolution
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
- 3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.
Time averaged spectrum fit using the average DRM
Power-law model
Time interval is from 0.016 sec. to 30.816 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.70705 ( -0.187894 0.193742 )
Norm@50keV : 1.65536E-03 ( -0.000202466 0.000198958 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.68 using 59 PHA bins.
# Reduced chi-squared = 0.8715 for 57 degrees of freedom
# Null hypothesis probability = 7.435738e-01
Photon flux (15-150 keV) in 30.8 sec: 0.220404 ( -0.023554 0.023559 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.71868e-07 ( -6.00736e-08 6.12098e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.016 sec. to 30.816 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.27968 ( -0.886019 0.391721 )
Epeak [keV] : 73.3883 ( -20.2481 -73.3895 )
Norm@50keV : 2.88540E-03 ( -0.00155845 0.00628865 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.71 using 59 PHA bins.
# Reduced chi-squared = 0.8698 for 56 degrees of freedom
# Null hypothesis probability = 7.445537e-01
Photon flux (15-150 keV) in 30.8 sec: 0.216772 ( -0.024402 0.024363 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.49458e-07 ( -7.05967e-08 7.17973e-08 ) ergs/cm2
Band function
Time interval is from 0.016 sec. to 30.816 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.37477 ( -2.904 -0.155573 )
beta : -1.98660 ( 1.97608 0.329632 )
Epeak [keV] : 32.5291 ( -17.294 114.382 )
Norm@50keV : 0.211779 ( -0.204594 52.8196 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.34 using 59 PHA bins.
# Reduced chi-squared = 0.8425 for 55 degrees of freedom
# Null hypothesis probability = 7.908258e-01
Photon flux (15-150 keV) in 30.8 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 11.0326 (-1.42078 1.70668)
R^2/D10^2 : 7.27005E-02 (-0.0299871 0.0485578)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.74 using 59 PHA bins.
# Reduced chi-squared = 1.153 for 57 degrees of freedom
# Null hypothesis probability = 1.999986e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.698e-08 1.032e-08
25- 50 1.617e-07 2.304e-08
50-150 1.115e-07 2.869e-08
15-150 3.302e-07 4.481e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 120.003 (-43.4875 -118.993)
Norm : 0.938055 (-0.119899 0.155135)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.66 using 59 PHA bins.
# Reduced chi-squared = 0.8536 for 57 degrees of freedom
# Null hypothesis probability = 7.763112e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.525e-08 1.046e-08
25- 50 1.346e-07 3.088e-08
50-150 2.403e-07 1.127e-07
15-150 4.501e-07 1.404e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.35728 (-1.651 1.81868)
R1^2/D10^2 : 0.243506 (-0.124983 0.310845)
kT2 [keV] : 28.7753 (-10.1466 40.1463)
R2^2/D10^2 : 1.49019E-03 (-0.00138755 0.00591171)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.64 using 59 PHA bins.
# Reduced chi-squared = 0.8298 for 55 degrees of freedom
# Null hypothesis probability = 8.116909e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.458e-08 3.452e-08
25- 50 1.400e-07 6.295e-08
50-150 2.398e-07 1.321e-07
15-150 4.545e-07 2.216e-07
Peak spectrum fit
Power-law model
Time interval is from 6.692 sec. to 7.692 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.67134 ( -0.193129 0.200448 )
Norm@50keV : 9.68792E-03 ( -0.00126216 0.00124193 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.03 using 59 PHA bins.
# Reduced chi-squared = 1.141 for 57 degrees of freedom
# Null hypothesis probability = 2.172657e-01
Photon flux (15-150 keV) in 1 sec: 1.27410 ( -0.14721 0.14724 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.99311e-08 ( -1.22939e-08 1.25114e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 6.692 sec. to 7.692 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.756216 ( -1.09916 0.84582 )
Epeak [keV] : 59.5961 ( -14.5435 149.581 )
Norm@50keV : 3.15849E-02 ( -0.0315854 0.102726 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.59 using 59 PHA bins.
# Reduced chi-squared = 1.100 for 56 degrees of freedom
# Null hypothesis probability = 2.830847e-01
Photon flux (15-150 keV) in 1 sec: 1.23740 ( -0.15096 0.15109 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.23323e-08 ( -1.37945e-08 1.43062e-08 ) ergs/cm2
Band function
Time interval is from 6.692 sec. to 7.692 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 0.848893 ( -0.644306 0.717552 )
beta : -2.14278 ( 9.99936 19.9994 )
Epeak [keV] : 39.1705 ( -11.7105 28.2092 )
Norm@50keV : 0.377126 ( -0.403394 176.604 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.08 using 59 PHA bins.
# Reduced chi-squared = 1.074 for 55 degrees of freedom
# Null hypothesis probability = 3.287581e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 11.4584 (-1.45244 1.73571)
R^2/D10^2 : 0.379602 (-0.153179 0.243245)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.60 using 59 PHA bins.
# Reduced chi-squared = 1.239 for 57 degrees of freedom
# Null hypothesis probability = 1.064300e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.049e-08 2.156e-09
25- 50 3.122e-08 4.655e-09
50-150 2.387e-08 6.390e-09
15-150 6.557e-08 1.035e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 129.210 (-48.9862 -127.195)
Norm : 5.38153 (-0.673429 0.908519)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.52 using 59 PHA bins.
# Reduced chi-squared = 1.097 for 57 degrees of freedom
# Null hypothesis probability = 2.866172e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.397e-08 2.718e-09
25- 50 2.530e-08 7.400e-09
50-150 4.678e-08 2.737e-08
15-150 8.605e-08 3.328e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.17541 (-2.02182 2.10867)
R1^2/D10^2 : 0.966022 (-0.487835 1.26139)
kT2 [keV] : 28.0176 (-21.8438 63.0618)
R2^2/D10^2 : 8.88447E-03 (-0.00855772 0.0499547)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.72 using 59 PHA bins.
# Reduced chi-squared = 1.068 for 55 degrees of freedom
# Null hypothesis probability = 3.407196e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.300e-08 5.591e-09
25- 50 2.836e-08 1.322e-08
50-150 4.473e-08 2.450e-08
15-150 8.609e-08 4.000e-08
Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)
Power-law model
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.73751 ( -0.157972 0.162486 )
Norm@50keV : 3.67867E-03 ( -0.000360772 0.000354776 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.45 using 59 PHA bins.
# Reduced chi-squared = 0.7974 for 57 degrees of freedom
# Null hypothesis probability = 8.645199e-01
Photon flux (15-150 keV) in 11.04 sec: 0.495147 ( -0.0425989 0.0426292 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.75028e-07 ( -3.8092e-08 3.86349e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.65671 ( -0.621837 0.240389 )
Epeak [keV] : 180.871 ( )
Norm@50keV : 4.06875E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.40 using 59 PHA bins.
# Reduced chi-squared = 0.8107 for 56 degrees of freedom
# Null hypothesis probability = 8.435269e-01
Photon flux (15-150 keV) in 11.04 sec: 0.493315 ( -0.044357 0.022197 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.72204e-07 ( -4.3693e-08 4.09054e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.32139 ( 1.44467 1.44467 )
beta : -1.80127 ( 1.79319 0.205271 )
Epeak [keV] : 55.8046 ( -56.4481 -56.4481 )
Norm@50keV : 6.74753E-03 ( -0.00342233 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.13 using 59 PHA bins.
# Reduced chi-squared = 0.8206 for 55 degrees of freedom
# Null hypothesis probability = 8.261442e-01
Photon flux (15-150 keV) in 11.04 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 1.28e-07
S(50-100 keV) = 1.57e-07
T90 vs. Hardness ratio plot
T90 = 23.5680000185966 sec.
Hardness ratio (energy fluence ratio) = 1.22656
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.43531
Count Ratio (50-100 keV) / (15-25 keV) = 0.851803
Mask shadow pattern
IMX = 2.778035389612715E-01, IMY = -6.233258369100032E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
Spacecraft aspect plot
Bright source in the pre-burst/pre-slew/post-slew images
Pre-burst image of 15-350 keV band
Time interval of the image:
-239.440000 0.016000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
308.1345 40.8853 4.6 46.1 -136.8 1.4287 2.5 4.2 Cyg X-3
326.2672 38.4518 582.1 40.1 -155.7 -0.0072 -0.0 9.0 Cyg X-2
5.6792 29.9108 2.7 34.9 148.6 1.5846 4.2 ------ UNKNOWN
322.0381 36.1673 2.6 43.9 -153.3 1.6937 4.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.016000 11.060590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
308.0467 40.9155 3.9 46.1 -136.7 0.2937 3.0 3.6 Cyg X-3
326.0221 38.4022 42.8 40.3 -155.5 -0.0148 -0.3 8.5 Cyg X-2
353.3886 16.2812 2.8 50.8 160.4 0.5413 4.1 ------ UNKNOWN
57.1709 65.8888 0.6 15.9 12.6 0.7043 18.6 ------ UNKNOWN
338.6197 48.6469 2.0 26.6 -157.6 0.2123 5.8 ------ UNKNOWN
149.1559 71.0244 1.9 40.9 -30.3 0.3556 6.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
50.260610 962.730000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
326.1202 38.3218 5.5 55.9 -166.3 -16.7546 -2.1 2.4 Cyg X-2
74.8019 55.2524 3.0 13.6 37.7 7.1598 3.8 ------ UNKNOWN
317.7181 38.7658 3.7 58.7 -159.2 36.5031 3.2 ------ UNKNOWN
Plot creation:
Mon May 2 14:54:27 EDT 2016